Covering A Cake In Melted Icing?

So I need to know who has done this and what kind of success you have had. I have read that you can heat icing in the microwave to melt it, then pour it over a cake and get a nice, even, smooth finish. Does this actually work? What are the benefits and drawbacks of doing it this way? Would it work for the 3D egg pan? How would I go about getting on the underside of the egg, since that will show? Help me out guys, I am desperate for something other than fondant and star tipped icing. Thanks to you all... you never let me down.

I know exactly what you are talking about, but this is actually canned frosting, warmed in the microwave and poured over the cake, not the poured fondant, which I have also looked into for this project. Why do you say that I need a steady hand or I will get a globby looking pour? What happens to it?